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Sleep Cycle Calculator

Sleep Cycle Calculator

Calculate your optimal bedtime or wake-up time based on 90-minute sleep cycles for a refreshed feeling.

Calculate Bedtime

Suggested Bedtimes:

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Calculate Wake-up Time

Suggested Wake-up Times:

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Understanding Sleep Cycles

A typical sleep cycle lasts approximately 90 minutes. Waking up at the end of a sleep cycle can help you feel more refreshed and less groggy. This calculator aims to align your sleep with these natural cycles.

Key points:

  • Each cycle is about 90 minutes.
  • Aim for 5-6 full sleep cycles (7.5 to 9 hours of sleep) for adults.
  • It typically takes about 14 minutes to fall asleep, which is factored into calculations.

Important Disclaimer

This Sleep Cycle Calculator provides suggestions based on average sleep cycle durations. Individual sleep patterns can vary. This tool is for informational purposes only and should not replace professional medical advice. If you have persistent sleep issues, please consult a healthcare professional.